Plane



Nov. 20, 1951 N BINGER 2,575,787

PLANE Filed April 30, 1948 JIS JNVENTOR.

BY v eM- Patented Nov. 20, 1951 UNITED STATES PATENT oFEIcEfj PLANE Nickolaus Binger, Pittsburgh, Pa.

Application April 30,1948, Serial No. 24,147

1 Claim. l

This invention relates to a carpenters plane, and important objects and advantages thereof are to provide a plane of thecharacter described, which utilizes a relatively short cutting blade that maybe economically replaced when required, which embodies novel means for securing, adjusting and releasing the blade, which carries indieating means facilitating the accuracy of the adjustments,which may be readily and conveniently adjusted by anyone of ordinary mechanical skill, which is simple in its construction and arrangement, durable, compact, efficient, attractive in appearance, and comparatively economical in its manufacture and use.

`To the accomplishment of these and such other objects as may hereinafter appear, the invention resides in the novel construction, combination and arrangement of parts herein specically described and illustrated in the accompanying drawing, but it is to be understood that changes in the form, proportions and details of construction may be resorted to that come within the scope of the claim hereunto appended.

In the drawing wherein like numerals of reference designate corresponding parts throughout the several views:

Fgurel is a top plan View of a plane constructed in accordance with the invention.

" Figure 2 is a cross sectional view on line 2--2,

Figure l.

Figure 3 is a view of the nut rest taken on line vFigure 6 is a View of the frog block taken on line 6 6, Figure 2.

Figure '7` is a plan View of the cutting blade. Figure 8 is an inner side View of the bearing plate and of yoke carried by the bearing plate.

Referring in detail to the drawing, the improved plane comprises an integral body formed to provide a plane bottom I and a pair of vertically disposed side walls 2 extending along respective side edges of the bottom and including centrally disposed elevated side wall portions 3.

-Anoperating handle 4 is mounted on the rear end of the bottom I, and a control knob 5 is mounted on the forward end of said bottom. The

wall portions 3, and is preferably formed integral with the latter and with said bottom. The ,for-1v ward face of the frog block inclines rearwardly at an angle from the Vertical, and is formed with a pair of spaced, inclining guide grooves Ill.

A clamping bolt 'I I, having an adjustable screw. thread engagement in the forward face of the frog block 9 between the guide grooves I0, in clines forwardly at rightangles with respect to' said forward face, and is formed with an annular groove I2, which is disposed adjacent to the. free upper end thereof for the purpose to be described.'

An adjusting plate I3 is positioned flatly on the inclined forward face of the frog block 9 and is slidably adjustable on the latter. The inner sur--v face of the adjusting plate is formedwitha pair of spaced guides I4,which latter slidably engage in respective guide grooves I0 in the frog block to assure and maintain the accurate alignment of the adjusting plate on the frog block.

The adjusting plate I3 is provided with a suitable centrally disposed opening I5 for the passage of the clamping bolt i i, and to provide the neces-r rectangularly-shaped in transverse cross section, and the rear end portion thereof rests 'upona cross bar I8, which has its ends fixed adjacent to the upper ends of respective side wall elevated portions 3.

An adjusting nut I9, formed with an annular groove 2B, is engaged on the threaded stem I7. A bearing plate 2l `for the adjusting nut is pivr, otally connected to and` between the elevated sidev handle is hollow to provide a chamber 6 for storing a supply of cutting blades l, and a suitable lid 8 is provided tocover said chamber 6.

A fixed frog block?! is disposed on the bottom I between the forward ends of the elevated side ofthe rearward end portion of the shank I6.. to!

wall portions 3, rearward of the cross bar I8, by a pair of pivoting screws 22. The forward edge of the bearing plate is formed with a bearing recess 23, the walls of which latter are engaged in the` annular groove 20 of the adjusting nut to pro. vide a suitable self-adjusting bearing for theA latter.

It will be obvious that the adjusting plate I3 may be projected or retracted on the frog blocky 9 by the adjustment of the adjusting nut I9 on the stem I1, due to the bearing engagement of: said adjusting nut with the bearing plate 2l inthe manner stated. .7. v The underside of thebearing plate 2l carries a fixed forwardly projecting yoke 24, including` a.

recess 3l the walls of which engage the side wallsv eliminate the tendency of the latter and the joined adjusting plate to turn during the adjustment of the latter by the rotation of the adjusting nut I 9 on the stem Il.

The adjusting nut I9 carries a xed, laterally projecting indicator 25. which cooperates with a suitably graduated scale 26 that is provided on the outer face of the bearing plate 2| and facilitates the accuracy of the plane adjustments.

A mouth 2l, having bevelled side walls, extends transversely across the plane bottom I adjacent to the forward end of the frog block 9, for the prothe blade, the clamping cam 36 and the locking latch 34 areboth released, which allows the removal of the clamping plate 3l. The adjusting plate I3 may then be swung to an elevated position from the frog block `9, for the convenient replacement of the blade, due to the engagement of the adjusting nut I9 in the pivotally connected bearing plate 2l in the manner stated.

It will here be noted that, when the clamping cam 36 is shifted to the securing position, the

` stress of the clamping action will be entirely jection of the blade l, and to provide a passage for shavings during planing operations.

The cutting blade 'I is preferably of the reversible double-edge type, and is mounted on the outer face of the adjusting plate I3 at the forward end of the latter. The blade 'I is loosely maintained in position on the adjusting plate by means of bosses 28, which are carried at the forward end of the adjusting plate and which engage in respective openings 29 that are formed in the blade.

The cutting blade l projects beyond the bevelled forward end 3B of the adjusting plate I3 and'through the mouth 2l' in the plane bottom I, and such projecting portion of the blade is seated against the rear bevelled side wall of said mouth.V

The cutting blade l is secured in position on the adjusting plate I3 by a clamping plate 3|, which is mounted on said adjusting plate. The clamping plate is provided with an aperture 32 for vthe passage of the clamping'bolt II, and carries a at spring 33 at the underside of the rearward end thereof, which spring normally functions to raise said rearward end slightl above the upper face of the shank I3. f

A locking latch 34 is pivotally connected to the top of the clamping plate 3l, and is suitably recessed to engage in the annular groove I2 in the free projecting end of the clamping bolt ll. The locking latch is held in the engaged position by the insertion of the free end thereof in a suitable catch 35, which is fixed on the clamping plate. When the locking latch is in the engaged position, the clamping plate is maintained in the proper position by the compressed action of the spring 33.

The forward end of the clamping plate 3I is seated on the blade 'I at a position slightly rearward of the projecting cutting edge of the latter. Thev upper portion of the forward end of the clamping plate is rounded olf so as not to interfere with the passage of shavings through the I mouth 21 in the plane bottom I. v

'I'he clamping plate 3l is shifted and secured in the rigidly clamping position by the operation of assuitable clamping cam 35, which is pivotally connected at the rear end of the clamping plate. The engaged locking latch 34 provides a shiftable holding attachment for the clampingV plate with the clamping bolt II, so that when the clamping cam is shifted to the clamping position against the spring 33 and shank I6, as shown in Figure 2, the rear end of the clamping plate will be elevated to provide leverage action forcing the forward end of the clamping plate against the vcutting blade l, whereby the latter will be rigidly secured in position during planing operations.

To adjust the cutting blade I in the plane, it is only necessary torelease the clamping cam 36 and then eifect the required adjustment by the rotation of the adjusting nut I9. To change borne by the cross bar I3 upon which the shank I 6 rests, and will have no untoward effect on the engagement of the clamping nut I9 in the bearing plate 2| and on the stem I1.

From the foregoing description taken in connection with the accompanying drawing, the construction and method of operation of the yinvention will be readily apparent to those skilled in the art to which the invention appertains, and it will be seen that the present invention provides a most eicient device of its kind, which may be economically constructed and successfully employed for the purpose and in the manner herein set forth.

What I claim is:

A plane of the class described, comprising the combination of a plane bottom provided with aV pair of side walls and with a transversely extending mouth, a rearwardly inclined frog block disposed on said bottom, a clamping bolt xed in said block and being provided with an annular groove adjacent to the free end thereof, an adjusting plate having slidable interengagement with said block and being provided with an opening for the passage of said bolt, a relatively short cutting blade removably mounted on the forward end of said adjusting bladeV and projecting through said mouth, a rectangularly shaped shank joined with said adjusting plate and extending rearwardly from the latter, a stem provided wi'th screw threads formed at the rear end of said shank, a self-adjusting bearing plate pivotally connected between said side walls and being provided with a U-shaped recess, an adjusting nut Arevolubly engaged on said stem, said vadjusting nut formed with an annular groove engaging the walls of said recess and being operable for adjusting said adjusting plate with said blade, a cross bar carried by said side walls for supporting the rear end of said shank, a yoke element carried by said bearing plate and including a recess for receiving the rear end of said ment pivotally connected with said clamping plate and engageable in said groove in said bolt for locking said clamping plate on said adjusting plate, a clamping cam pivotally connected with said clamping plate operable for securing said adjusting plate and said blade in the adv justed positions, a graduated dial scale formed on the outer face of said bearing plate, and a laterally projecting indicator xed in said adjusting nut and cooperating with said dial scale for facilitating the adjustments of said adjust--v ing plate with said blade.

NIcKoLAUs rnNGER.`

(References on following page) v REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number 5 Name Date Mitchell Mar. 13, 1906 Best et al Feb. 11, 1913 Selleck Oct. 19, 1915 Tvedt Jan. 2, 1923 10 Number Number Name Date Kenney Oct. 13, 1925 Basmason Feb. 23, 1926 Rodionof Aug.` 27, 1929 Spyker Sept.` 13, 1932 FOREIGN PATENTS Country Date Germany May 21, 1927 

